My oh My..this cake taste good , got the Recipe from my fabulous cake book . My Family love it ..Me too.
Recipe as follows:

125 g unsalted Butter
½ cup caster sugar
2 eggs – lightly beaten
1 tsp imitation of vanilla or vanilla essence
100 gr white chocolate – coarsely chopped
½ cup plain or vanilla yogurt or any flavors

White Chocolate topping :
125 gr cream cheese
60 gr white chocolate -melted
2 tbs plain yogurt

Beat butter and sugar using electric beaters until light and creamy. Add eggs gradually , beating thoroughly after each addition.Add essence ; beat until combined.

Melted the chocolate and yogurt add to the mixture.Using a metal spoon , fold in sifted flour.Stir until just combined and mixture almost smooth.
Bake for 40 minutes or until skewer comes out clean when inserted in the centre of cake. Stand cake 15 minutes in the tin before turning to wire rack to cool.

To make topping :
Beat cream cheese until light and creamy ,add chocolate melted and yogurt , beat until the mixture is smooth and fluffy. Spead icing completely over the cake . decorate cake with white chocolate curls.